Overview
Tremella dendrographae Diederich & Tehler is a species of jelly fungi belonging to the family Tremellaceae. It is also known as dendrographa witch's butter or woodgrapha jelly.
Origin
The plant can be found growing in Southeast Asia, especially in Indonesia, Malaysia, and the Philippines. It is commonly found on the trunks and branches of living trees, where it appears as a yellow-orange, gelatinous blob.
Appearance
The fruiting body of Tremella dendrographae is a small and waxy, measuring around 1-2 cm in diameter. Its surface is smooth, shiny, and with a bright yellow to orange colour. The fruiting bodies grow clumped together, resembling a cluster of tiny yellow fingers.
Uses
While not commonly used for medicinal purposes, Tremella dendrographae is known for its high levels of polysaccharides, which have been found to have anti-cancer, anti-inflammatory, and immune-boosting properties. It is also often used in cooking, especially in the preparation of jellies and desserts, for its ability to absorb flavours without adding any of its own.
Light Requirements
The plant Tremella dendrographae typically grows in shaded areas and can be found in forests with partial to full shade. It thrives in low light conditions and cannot tolerate direct sunlight.
Temperature Requirements
The plant can tolerate a wide range of temperatures ranging from 10 to 30 degrees Celsius. However, it prefers a temperature range of 20-25°C for optimal growth. When temperatures drop below 10°C or rise above 30°C, it may undergo stress, which can negatively affect its growth and development.
Soil Requirements
Tremella dendrographae grows best in well-aerated soil with high water-holding capacity and good drainage. The ideal soil pH ranges from slightly acidic to neutral, with pH levels between 5.0 to 7.5. It prefers soil that is rich in organic matter, high in nitrogen, and low in phosphorus. Additionally, it requires a soil that is free from pollutants such as heavy metals, which can harm it.
Humidity Requirements
Tremella dendrographae thrives in humid conditions, with a relative humidity level of around 70-90%. It requires high humidity levels for proper growth, and soil moisture should be maintained at proper levels to avoid drying out or waterlogging.
Fertilization Requirements
Tremella dendrographae is not a heavy feeder, and too much fertilizer can lead to excess vegetative growth. However, it requires regular fertilization to maintain optimal growth. Fertilization should be done using a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium. Additionally, it can benefit from the application of organic amendments such as compost or aged manure.
Cultivation methods
Tremella dendrographae is a species of fungus that grows on living tropical trees. To cultivate this plant, one needs to mimic its natural environment by providing the necessary growing conditions. It is best grown on logs with the bark still attached, placed horizontally or vertically, with the top end exposed to air circulation. The logs must be freshly cut and not yet colonized by other fungi or bacteria.
The logs need to be soaked in water for at least 24 hours to mimic the natural rainfall that stimulates fruiting bodies' formation. Then, sterilize the logs by boiling them in water for at least an hour to prevent contamination. Afterward, you can inoculate the logs with the fungal spores of Tremella dendrographae by using spawn. Protect the logs from direct sunlight and heavy rainfall.
Watering needs
Tremella dendrographae prefers moist but not waterlogged conditions. This plant requires regular watering, especially during hot and dry seasons. Water the logs well by spraying them with a mist of water to avoid disturbing the colonization process.
Fertilization
Tremella dendrographae is a saprophytic fungus that feeds on the decomposing organic matter of the host tree. It does not require additional fertilization as it obtains all necessary nutrients from the tree.
Pruning
Pruning is not necessary for Tremella dendrographae cultivation. Since it grows on logs, there is no need to trim or shape the plant.
Propagation of Tremella dendrographae Diederich & Tehler
Tremella dendrographae is a parasitic fungus that relies on the tree host's nutrients for survival. Therefore, the propagation methods for this plant are limited. Nevertheless, some tactics can be used to propagate this species.
Spores
Propagation through spores is the most common method for Tremella dendrographae. The spores serve as the reproductive unit and can be disseminated by air or water. They must find a suitable host's bark to germinate and infect the tree's cambium. The spores are microscopic and can be challenging to handle. They are sensitive to light and temperature changes, requiring careful storage and transportation.
Inoculation
Inoculation is a method that involves the transfer of mycelium from a mature Tremella dendrographae to a young tree. This method involves making small incisions on the tree's bark and inserting the mycelium. The mycelium will then spread and infect the tree, leading to the formation of new Tremella dendrographae fruit bodies.
Culture
Tremella dendrographae can be propagated under laboratory conditions through culture. By taking a sample of the fungus and transferring it to a culture medium suitable for growth, the plant can be propagated. This method is often used for research purposes, and it is not practical for large-scale propagation.
Conclusion
Propagation of Tremella dendrographae is limited, and the best method is through spores. The use of inoculation and culture is not common and is only suited for research purposes. Proper handling and storage of spores are crucial, and care should be taken to prevent contamination with other fungi species.
Disease and Pest Management for Tremella dendrographae
Tremella dendrographae is a type of jelly fungus that usually grows on the dead branches of deciduous trees. Even though this fungus is not usually affected by pests and diseases, it is still important to take measures to prevent infestations and infections.
Common Diseases that Affect Tremella dendrographae
One of the most common diseases that can affect Tremella dendrographae is root rot. This disease is caused by overwatering the plant or by planting it in soil with poor drainage. To prevent root rot, make sure to water the plant only when the soil is dry and to use well-draining soil.
Another disease that can affect Tremella dendrographae is leaf spot. This disease is caused by a fungus that thrives in warm and humid environments. To prevent leaf spot, make sure to avoid getting water on the leaves when watering the plant and to provide good air circulation around the plant.
Common Pests that Affect Tremella dendrographae
While Tremella dendrographae is not usually affected by pests, it is still vulnerable to some insects. One of the most common pests that can affect this plant is the mealybug. Mealybugs are small white insects that suck the sap from the plant's leaves and stems. To get rid of mealybugs, use a cotton swab dipped in rubbing alcohol to wipe them off the plant.
Another pest that can affect Tremella dendrographae is the scale insect. Scale insects are tiny insects that attach themselves to the plant's leaves and suck the sap from them. To get rid of scale insects, wash the leaves with a solution of water and dish soap, and then rinse the plant with clean water.
In conclusion, while Tremella dendrographae is not usually affected by pests and diseases, it is important to take measures to prevent any potential infestations and infections. Keeping the plant healthy by providing good growing conditions, such as well-draining soil and good air circulation, is the best defense against diseases and pests.
